ABOUT

TsukasaJames is a handmade leather guitar strap brand from Japan.

I don’t make straps as decoration.
I build them as structures—armor for your instrument, your sound, and the conviction behind it.

I was once a composer. Now I support sound instead of creating it.

Each shrink grain isn’t finished on day one.
With every night on stage, the leather gains depth and character—
a record shaped by time and by the conviction of the player who carries it.

Every piece is crafted one by one from genuine cowhide leather, with a focus on structure, balance, and durability.
No two pieces are identical.

Used on stage by working musicians.
See artist photos and features on Instagram.

Dare to wear the difference.